Ing, J. (1988). Johann Gutenberg and his Bible: A historical study. Typophile chap book.
Citazione stile Chigago Style (17a edizione)Ing, Janet. "Johann Gutenberg and His Bible: A Historical Study." Typophile Chap Book 1988.
Citatione MLA (8a ed.)Ing, Janet. "Johann Gutenberg and His Bible: A Historical Study." Typophile Chap Book, 1988.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.